Phase II ESA is required when what occurs?

• A. An initial site is not found to have issues
• B. Potential issues are discovered during Phase I
• C. Phase I report is rejected
• D. Phase III plan is approved

Answer: (B)

Phase II is triggered when Phase I identifies potential environmental concerns—recognized environmental conditions that suggest contamination may be present and warrants further investigation. Phase I is a broad review and site visit aimed at spotting these conditions. When such issues are found, a Phase II ESA is conducted to collect samples (soil, groundwater, building materials, etc.) and perform lab analyses to confirm whether contamination exists, determine its type and extent, and provide the data needed for risk assessment and cleanup planning. If Phase I finds no potential issues, a Phase II is typically not required. The other options describe outcomes or steps that occur after Phase II, not the trigger for it.